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0MLMHTK65RUENUB
Frequency Converter Setup
RPS MASTER HP-UL series products are designed to operate from 480 volt, 60Hz input and can be set through
front panel settings to provide 400 volt, 50Hz output. The power rating is reduced 20% in frequency converter
mode.
The following procedure is to be used for adjusting the output voltage and frequency.
For parallel systems the following settings must be made with the parallel card disconnected.
1)
With the unit operating in normal mode
OPEN
the
SWOUT
switch and the
SWBY
switch, both located
on the panel behind the front door.
2)
The following sequence of numbers must be entered into the display to access settings. Press the front
panel display buttons 3, 5, 151515, 7
3)
Press 3, 5, 723641, 7 to access the frequency converter settings
4)
Press 8 to Enable frequency converter mode
CAUTION: when adjusting the output frequency from 60Hz to 50Hz always adjust the voltage before
setting the frequency to 50HZ and follows this sequence.
5)
Press 2 to enter the Voltage adjust menu. Press keys 5, 6, 7, or 8 as necessary to adjust the output voltage
to 400/230. Keys 5 and 6 are coarse adjustments while 7 and 8 are fine adjustments. Press 1 to exit from
the voltage adjust menu.
6)
Press 3 to enter the Frequency adjust menu. Press keys 5, 6, 7, or 8 as necessary to adjust the output
frequency to 50Hz. Keys 5 and 6 are coarse adjustments while 7 and 8 are fine adjustments. Press 1 to
exit from the voltage adjust menu.
7)
Press 1 to exit from the frequency converter menu
8)
The display should now show VF after the unit rating.
UxxxA VF
9)
Close the
SWOUT
switch. The unit is now configured as a frequency converter.
CAUTION:
During operation in this mode static bypass will not be available and the maintenance bypass
switch
SWMB
should
NOT
be closed.
10)
The unit can be turned back to 480 volt, 60Hz output by simply turning off frequency converter mode.
Follow steps 1, 2 and 3 above. Press key 7 to disable frequency converter mode.